>Hello;
>
>I recently survived an IP address change when my ISP changed upstream
>providers. This was about 10 days ago. Today, the mail servers I administer
>[all SIMS servers] quit receiving mail because of return path errors:
>
>
>01:14:11 3 SMTP-029(web11004.mail.yahoo.com) Failed to verify. Real address
>is [216.136.131.54:3781]
>01:15:15 3 SMTP-029([216.136.131.54]) Return-Path-A Search Error. Error
>Code=-3162
>01:15:15 3 SMTP-029([216.136.131.54]) Abort Received, reason=1558728
>01:19:01 3 SMTP-030(ancmail03.ancestry.com) Failed to verify. Real address
>is [216.10.103.201:2858]
>01:20:05 3 SMTP-030([216.10.103.201]) Return-Path-A Search Error. Error
>Code=-3162
>01:28:58 3 SMTP-031(juno.com) Failed to get IP addresses. Error Code=-3162
>01:28:58 3 SMTP [S.0000013306] dequeueing
>01:29:44 3 SMTP-032(myfamlsmtp01.myfamilysouth.com) Failed to verify. Real
>address is [63.92.89.123:2442]
>01:30:37 3 SMTP-033(ancmail03.ancestry.com) Failed to verify. Real address
>is [216.10.103.201:1567]
>01:30:48 3 SMTP-032([63.92.89.123]) Return-Path-A Search Error. Error
>Code=-3162
>01:31:41 3 SMTP-033([216.10.103.201]) Return-Path-A Search Error. Error
>Code=-3162
>01:33:15 3 SMTP-034(femail7.sdc1.sfba.home.com) Failed to verify. Real
>address is [24.0.95.87:49989]
>01:34:19 3 SMTP-034([24.0.95.87]) Return-Path-A Search Error. Error
>Code=-3162
>01:36:07 3 SMTP-035(thunderer.nxlkhost.com) Failed to verify. Real address
>is [207.155.252.51:58518]
>01:37:10 0 SYSTEM The current date is Tuesday, August 14, 2001
>01:37:10 3 SMTP-035([207.155.252.51]) Return-Path-A Search Error. Error
>Code=-3162
>
>It doesn't seem that the absence of PTR records for our new IP addresses
>should cause this. We are trying to get the reverse delegation sorted out,
>but what is really going on? In the meantime, I have turned off Verify
>Return Paths to allow mail in.
>
>Thanks;
>Jeff
>
Hi Jeff,
I can't be sure that this problem is the same, but when a friend
got their server & connections all hooked up a couple of years back, the
inbound routing was stuffed up by the ISP, who didn't route traffic
properly back into the connection, only the outbound was routed correctly.
It sounds as though something has been changed in the routing from
your ISP & I'd check with them before looking too hard at your own servers,
especially if it's more than a couple of machines.
Bye for now, Terry Allen
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